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Eagle Rescued From Brink of Extinction
2 Jul
Summary
- Bald eagles nearly went extinct due to DDT pesticide use.
- A daring plan involved transporting eagle eggs to incubate.
- Bird flu is now a threat to the recovering eagle population.

The bald eagle, a powerful symbol of the nation, faced near extinction in the 1970s due to the pesticide DDT. This chemical caused eggshells to become too thin for successful incubation, with one New Jersey breeding pair being the last of their kind in the state. Wildlife biologists executed an ingenious plan, transporting the delicate eggs 100 miles to a federal research center in Maryland.
At the center, mechanical incubators and lighter chickens were used to ensure the eggs' survival. This groundbreaking initiative, which involved meticulous temperature control, saw an average of three-fifths of the transported eggs hatch. The chicks were later returned to their nests, successfully raised by their parents, and marked a turning point for the species.
Decades later, these majestic raptors have made a significant comeback, with 251 active nests reported in New Jersey last year. Over 70 percent of nests with known outcomes were successful, producing 271 offspring. Despite this recovery, bald eagles are not entirely out of danger.
Highly Pathogenic Avian Influenza (HPAI), or bird flu, has emerged as a new threat, accounting for half of the state's 56 bald eagle mortalities last year. While the number of active nests has seen a slight decline, experts remain cautiously optimistic, citing the species' tenacity and the importance of continued habitat preservation and public care.